(Copied from original User Voice forum)
"I think it would be really quite useful if not necessary to have PBR/PBS shader/rendering technology in Maya LT. Physically based rendering/shading is currently used in Unity 5 as well as in the Unreal Game Engine. Additionally Painting applications such as Substance Painter and 3DCoat allow for PBR Texture generation which I would love to be able to import back into Maya LT. "
"Basically after closing Stingray, it would by nice to have another PBS Material that could allow us export in an easiest way all the maps to Unity and Unreal 4."
"Small fixes to PBR in Maya LT: Point and spot lights to work with standard physically based shader; hypershade to show correct samples, mine just shows static kinda like your tv is on the way out; attribute editor to show values as it doesn't always seem to display anything (the current workaround i have found it to open the attribute editor in the hypershade menu)."